Bishop's Christian protesters face court

CHRISTIAN protesters charged with trespassing after staging a sit-in vigil at the Perth office of Foreign Minister Julie Bishop are prepared to be punished if it highlights the plight of child asylum seekers in detention.

Nine men and two women who conducted a prayer vigil at the Liberal deputy leader's electorate offices in Subiaco last month were charged with trespassing. Ms Bishop was not in the office at the time.

An eleventh person, Philip Robert Stevenson, did not appear in court because his overseas flight had been delayed, but he was represented by the same lawyer.

The protesters - who identify with a variety of Christian churches including Churches of Christ, Riverview, Baptist, Uniting and Anglican - said at the time of their arrest that they were protesting against the treatment of more than 1100 children in Australia's immigration detention centres.

It followed similar action in the office of Immigration Minister Scott Morrison.

Outside court on Friday, dozens of supporters held another peaceful vigil, including Uniting Church WA associate general secretary of justice and mission, Rosemary Hudson Miller, who said all Christian churches were against detention.

"Experts have told us about the permanent damage that is done to the children," she told AAP.

"Children should only ever be detained as a complete last resort.

"They are not being processed in the way they need to be, in a very rapid way."

Ms Miller said political motives behind the detentions were "disgusting" and a breach of human rights.

The protesters would accept the advice of their pro-bono lawyers, she said, but "people are prepared to do what needs to be done to make this point".